The SQUARE D QO220SWN circuit breaker is a reliable and high-quality product designed for electrical installations in various industrial settings. With a maximum amperage of 20A and a voltage rating of 201-250V, this main breaker offers a simple and efficient on/off operation method. The circuit breaker features a clip-on mounting style, making installation quick and easy. Additionally, it comes with thermal overload protection and a trip indicator, ensuring safety and reliability in electrical circuits. With the Square D brand reputation and its specific model number QO, this circuit breaker is a dependable choice for any electrical setup.